Hair dryer



FIG. 1 is a left-side elevational view of a hair dryer showing my newdesign, the right-side elevational view being a mirror image;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof; and

FIG. 5 is a rear elevational view thereof.

The broken line showing of an electric cord in FIG. 1 is forillustrative purposes only and forms no part of the claimed design.

The ornamental design for a hair dryer, as shown and described.